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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Setup pointers to hardware dependent routines.
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
Ralf Baechlefcdb27a2006-01-18 17:37:07 +00008 * Copyright (C) 1996, 1997, 2004, 05 by Ralf Baechle (ralf@linux-mips.org)
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv)
10 *
11 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#include <linux/init.h>
Yoichi Yuasa1097c6a2007-10-22 19:43:15 +090013#include <linux/interrupt.h>
14#include <linux/io.h>
15#include <linux/ioport.h>
Ralf Baechlefcdb27a2006-01-18 17:37:07 +000016#include <linux/pm.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070017
18#include <asm/bootinfo.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070019#include <asm/reboot.h>
Yoichi Yuasa8a8594a2010-02-08 21:01:22 +090020#include <asm/setup.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include <asm/gt64120.h>
22
Yoichi Yuasacc50b672007-03-06 21:34:44 +090023#include <cobalt.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070024
25extern void cobalt_machine_restart(char *command);
26extern void cobalt_machine_halt(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -070027
Linus Torvalds1da177e2005-04-16 15:20:36 -070028const char *get_system_type(void)
29{
Ralf Baechlec4ed38a2005-02-21 16:18:36 +000030 switch (cobalt_board_id) {
31 case COBALT_BRD_ID_QUBE1:
32 return "Cobalt Qube";
33 case COBALT_BRD_ID_RAQ1:
34 return "Cobalt RaQ";
35 case COBALT_BRD_ID_QUBE2:
36 return "Cobalt Qube2";
37 case COBALT_BRD_ID_RAQ2:
38 return "Cobalt RaQ2";
39 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070040 return "MIPS Cobalt";
41}
42
Yoichi Yuasa47d7c442007-03-01 22:50:25 +090043/*
44 * Cobalt doesn't have PS/2 keyboard/mouse interfaces,
Andrea Gelminib73989d2016-05-21 13:59:39 +020045 * keyboard controller is never used.
46 * Also PCI-ISA bridge DMA controller is never used.
Yoichi Yuasa47d7c442007-03-01 22:50:25 +090047 */
48static struct resource cobalt_reserved_resources[] = {
49 { /* dma1 */
Ralf Baechle5e46c3a2006-06-04 15:14:05 -070050 .start = 0x00,
51 .end = 0x1f,
Yoichi Yuasa47d7c442007-03-01 22:50:25 +090052 .name = "reserved",
53 .flags = IORESOURCE_BUSY | IORESOURCE_IO,
54 },
55 { /* keyboard */
Ralf Baechle5e46c3a2006-06-04 15:14:05 -070056 .start = 0x60,
57 .end = 0x6f,
Yoichi Yuasa47d7c442007-03-01 22:50:25 +090058 .name = "reserved",
59 .flags = IORESOURCE_BUSY | IORESOURCE_IO,
60 },
61 { /* dma page reg */
Ralf Baechle5e46c3a2006-06-04 15:14:05 -070062 .start = 0x80,
63 .end = 0x8f,
Yoichi Yuasa47d7c442007-03-01 22:50:25 +090064 .name = "reserved",
65 .flags = IORESOURCE_BUSY | IORESOURCE_IO,
66 },
67 { /* dma2 */
Ralf Baechle5e46c3a2006-06-04 15:14:05 -070068 .start = 0xc0,
69 .end = 0xdf,
Yoichi Yuasa47d7c442007-03-01 22:50:25 +090070 .name = "reserved",
71 .flags = IORESOURCE_BUSY | IORESOURCE_IO,
Ralf Baechle5e46c3a2006-06-04 15:14:05 -070072 },
Linus Torvalds1da177e2005-04-16 15:20:36 -070073};
74
Ralf Baechle2925aba2006-06-18 01:32:22 +010075void __init plat_mem_setup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070076{
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 int i;
78
79 _machine_restart = cobalt_machine_restart;
80 _machine_halt = cobalt_machine_halt;
Yoichi Yuasaf13558c2007-10-02 23:21:36 +090081 pm_power_off = cobalt_machine_halt;
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
Yoichi Yuasa56ae5832006-10-14 00:25:04 +090083 set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE));
Ralf Baechlec4ed38a2005-02-21 16:18:36 +000084
Yoichi Yuasab5d5acc2008-07-18 23:03:15 +090085 /* I/O port resource */
86 ioport_resource.end = 0x01ffffff;
Linus Torvalds1da177e2005-04-16 15:20:36 -070087
Yoichi Yuasa47d7c442007-03-01 22:50:25 +090088 /* These resources have been reserved by VIA SuperI/O chip. */
89 for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++)
90 request_resource(&ioport_resource, cobalt_reserved_resources + i);
Linus Torvalds1da177e2005-04-16 15:20:36 -070091}
92
Linus Torvalds1da177e2005-04-16 15:20:36 -070093/*
94 * Prom init. We read our one and only communication with the firmware.
Ralf Baechlec4ed38a2005-02-21 16:18:36 +000095 * Grab the amount of installed memory.
96 * Better boot loaders (CoLo) pass a command line too :-)
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 */
98
99void __init prom_init(void)
100{
Ralf Baechlec4ed38a2005-02-21 16:18:36 +0000101 unsigned long memsz;
Yoichi Yuasa0833c762009-12-24 17:06:34 +0900102 int argc, i;
Ralf Baechlec4ed38a2005-02-21 16:18:36 +0000103 char **argv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104
Ralf Baechlec4ed38a2005-02-21 16:18:36 +0000105 memsz = fw_arg0 & 0x7fff0000;
Yoichi Yuasa0833c762009-12-24 17:06:34 +0900106 argc = fw_arg0 & 0x0000ffff;
107 argv = (char **)fw_arg1;
Ralf Baechlec4ed38a2005-02-21 16:18:36 +0000108
Yoichi Yuasa0833c762009-12-24 17:06:34 +0900109 for (i = 1; i < argc; i++) {
110 strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE);
111 if (i < (argc - 1))
112 strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
Ralf Baechlec4ed38a2005-02-21 16:18:36 +0000113 }
114
115 add_memory_region(0x0, memsz, BOOT_MEM_RAM);
Yoichi Yuasa8a8594a2010-02-08 21:01:22 +0900116
117 setup_8250_early_printk_port(CKSEG1ADDR(0x1c800000), 0, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118}
119
Atsushi Nemotoc44e8d52006-12-30 00:43:59 +0900120void __init prom_free_prom_memory(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121{
122 /* Nothing to do! */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123}